Preparation of overbased carbonated sulfurized magnesium alkylph

Compositions – Electrolytes for electrical devices

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252 18, 252 25, C10M 154

Patent

active

039322890

ABSTRACT:
A process is disclosed for preparing overbased carbonated sulfurized magnesium alkylphenates. In the process, magnesium methoxide is carbonated and then contacted with an alkylphenol to form a normal magnesium phenate. The normal magnesium phenate is sulfurized and then contacted with an additional amount of carbonated magnesium methoxide to form the overbased sulfurized magnesium phenate.

REFERENCES:
patent: 3801507 (1974-04-01), Hendrickson et al.
patent: 3810837 (1974-05-01), Chafetz et al.

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